• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5

# The aim of my investigation was to explore the viscosity of golden syrup using stokes law to calculate the viscosity of the liquid.

Extracts from this document...

Introduction

Stokes's law is the basis of the falling-sphere viscometer, in which the fluid is stationary in a vertical glass tube. A sphere of known size and density is allowed to descend through the liquid. If correctly selected, it reaches terminal velocity, which can be measured by the time it takes to pass two marks on the tube.

The aim of my investigation was to explore the viscosity of golden syrup using stokes law to calculate the viscosity of the liquid.

Apart from superfluids, liquids and gasses have the property of viscosity. Viscosity is measured in Pascal-seconds; this describes its resistance to deformation and the ease that which it flows. Viscosity is internal friction this is due

Middle

These are the results I gathered from my dropping.

 Ball Radius 1 2 3 4 5 6 7 8 9 10 ‘Medium’5.955mm 23.28s 22.18s 22.41s 22.28s 21.53s 21.66s 21.84s 20.31s 20.40s 20.97s ‘small’ 4.69mm 30.00s 31.05s 27.90s 28.28s 28.50s 30.50s 30.19s 30.19s 29.19s 30.96s

Averages:

‘Medium’ – 21.686s

‘Small’ – 29.673s

There is an increase in speed

Conclusion

The graphs show the ball bearing size the drop attempt and the time taken. The black line shows the average of the drops.

The medium sized ball has a small gradient on the graph, this could be because of air bubbles in the golden syrup during the test, this would create a small amount of extra time to get to the bottom as the air bubbles will create resistance.

The ball bearing weight can be determined with =mg

g=9.81

m=

p=Density in kg/m

The density of chrome steel is 0.283 lbs/cubic inch

(http://www.precisionballs.com/TDS/Ball_Bearing_Steel.htm)

This is in cubic inches but I need it in kg/m

The density in kg/m is 7833.4.13kg/m

V= Volume of sphere

V = 0.0008868

M = 0.006947kg

Fg= 0.0682 – ‘Medium’ Ball

This student written piece of work is one of many that can be found in our AS and A Level Fields & Forces section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related AS and A Level Fields & Forces essays

1. ## paper cones investigation

5 star(s)

There are no anomalous results to be dealt with. By drawing a graph of t2 versus 1/m the relationship can be confirmed: The processed results hence look as follows: m / kg t / s ?m / kg)-1 (t / s)2 0.003 2.68 333 7.17 0.004 2.35 250 5.53 0.005

2. ## Investigating the forces acting on a trolley on a ramp

5 star(s)

Between the 'gate' of the light gate, there are two IR LEDs, which maintain a beam between them. Simply put, when the beam is broken, this sends a signal to the main processor, which starts the timing. The signal from the LED which is detecting the IR radiation sends its

1. ## Viscosity Experiment. The aim of my investigation will be to analyse the relationship ...

This is to be achieved by the spheres weight acting downwards, and in addition to the drag force produced, there is either an up thrust or buoyancy force produced. Up thrust/Buoyancy always acts when an object is immersed in a fluid, the object displaces fluid around it, and hence it arises.

2. ## Investigation to determine the viscosity of glycerol.

The red line is the upper layer of water in the jug which flows in the glass, when this layer has flown into the glass the maroon layer starts flowing and the finally the black layer. This is because the black layer is closest to the solid (which in this

1. ## Stopping distance Investigation.

Light gate and stand Data log Metre rules 4 x 1kg weights 'Brake' Paper Scales Bars to connect trolleys with DIAGRAM: OBSERVATIONS TO BE MADE: In this experiment, I will be observing how changing the starting distance and mass of the trolley affects the speed at which it passes through

2. ## Modeling a basketball shoot in the lab

stored in spring with conservation of energy, the energy stored is turned into Kinetic energy but this is when assuming there is no air resistance or any other kind of energy lost. Figure 5.- a spring loaded plunger There are three different set of forces in a spring loaded plunger

1. ## Force of friction

2.4 2.2 3.4 3.2 5.2 5 Normal force R /N (Weight of the blocks) 3.92 5.89 7.89 Disscusion: 1. Description of the shape of the graph of frictional force against the applied force The graph was like a right angle triangle and followed by a rectangle with smaller height.

2. ## Practice A2 Investigation: Measuring the torsion of wire

, keep first aid kit nearby Trip hazards Ensure no objects are left on the floor, including attire and bags Handling screwdrivers Be careful when using a screwdriver and do not point at either oneself, or others individuals present In fact, this investigation is relatively safe as long as these

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to